Improvement in sealing preserve-cans



NO. 80,585. EPATENTED NOV. 6, 1860 w. W. PADDOOK. SEALING PRESERVE CANS.

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' UNITED STATES PATENT OFFICE;

WALTER'W. PADDOOK, OF-OIN GIN N ATI, OHIO.

IMPROVEMENT IN SEALING PRESERVE-CANS,

' Specification forming part of Letters Patent No. 30,585,dnfod'Novcmbcr-(i, 1860.

To 09% whom, it may concern:

Be it known that I, YVALTER W. PADDOOK. of Cincinnati, in the county ofHamilton and. State of Ohio, have invented a new and useful Improvementin Sealing PreserveOan's; and I hereby declare the following to be afull, clear, and exact description thereof, reference being bad to theaccompanying drawing, makingpart of this specification.

My invention has for its object a mode of hermetically closing themouths of jars and other vessels used for preserving edible substances,and relates particularly to a combination of automatic valve andpermanent seal ing devlce, as hereinafter explained.

The accompanying drawing represents by axial section a can embodying myimprovement.

A represents the body of the can;'B, itslid secured by solder orotherwise. Through this lid a valve-guarded aperture, 0 c, communicatesoutwardly with an exhaust or vapor chamber, D, which itself communicateswith a sealing-cap, E.

The operation is as follows: The can or jar A being filled and its lidsecured by solder, wax, rubber gasket, or other approved way,

the contained air may be either expelled by heating or exhausted byother means, the valve 6 preventing any retrograde action.

the can has been suificiently divested of its atmospheric contents, theupper receptacle or cup, E, is filled with wax, and the can may then beset a ay for future use. The automatic valve 0 acts to temporarilyexclude the air until the can is permanently closed by means of thesealing-cup E. The wax, not coming in actual contact with the valve 0,can be afterward removed either by mechanical means or by heat withoutdetracting from the future effectiveness of the can.

I am aware that automatic valves of variset my hand.

, WALTER W. PADDOGK. Witnesses:

GEO. KNIGHT, FRANCIS MILLWA'RD.

